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1module.exports = class LinkedList
2
3 ###
4 ###
5 getNextSibling: () ->
6 return @_nextSibling
7
8 ###
9 ###
10 addNextSibling: (sibling, replNext) ->
11 @_nexSibling._prevSibling = sibling if !!@_nextSibling;
12 sibling._prevSibling = @
13 sibling._nextSibling = @_nextSibling if not replNext
14 @_nextSibling = sibling
15
16 ###
17 ###
18
19 getPrevSibling: () ->
20 return @_prevSibling
21
22 ###
23 ###
24 addPrevSibling: (sibling, replPrev) ->
25 @_prevSibling._nextSibling = sibling if !!@_prevSibling;
26 sibling._nextSibling = @
27 sibling._prevSibling = @_prevSibling if not replPrev
28 @_prevSibling = sibling
29
30 ###
31 ###
32 getFirstSibling: () ->
33 first = @
34
35
36 first = first._prevSibling while !!first._prevSibling
37
38 return first
39
40 ###
41 ###
42
43 getLastSibling: () ->
44 last = @
45
46 last = last._nextSibling while !!last._nextSibling
47
48 return last
49
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